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O mixin WindowOrWorkerGlobalScope descreve vários recursos comuns às interfaces Window e WorkerGlobalScope. Cada uma dessas interfaces pode, obviamente, adicionar mais recursos além dos listados abaixo.

Nota: WindowOrWorkerGlobalScope é um mixin e não uma interface; você não pode atualmente criar um objeto do tipo WindowOrWorkerGlobalScope.


These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope.

WindowOrWorkerGlobalScope.caches Somente leitura
Returns the CacheStorage object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.
WindowOrWorkerGlobalScope.indexedDB Somente leitura
Provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an IDBFactory object.
WindowOrWorkerGlobalScope.isSecureContext Somente leitura
Returns a boolean indicating whether the current context is secure (true) or not (false).
WindowOrWorkerGlobalScope.origin Somente leitura
Returns the origin of the global scope, serialized as a string.


These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope.

Decodes a string of data which has been encoded using base-64 encoding.
Creates a base-64 encoded ASCII string from a string of binary data.
Cancels the repeated execution set using WindowOrWorkerGlobalScope.setInterval().
Cancels the delayed execution set using WindowOrWorkerGlobalScope.setTimeout().
Accepts a variety of different image sources, and returns a Promise which resolves to an ImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.
Starts the process of fetching a resource from the network.
Schedules a function to execute every time a given number of milliseconds elapses.
Schedules a function to execute in a given amount of time.


Specification Status Comment
HTML Living Standard
The definition of 'WindowOrWorkerGlobalScope mixin' in that specification.
Padrão em tempo real This is where the main mixin is defined.
The definition of 'fetch()' in that specification.
Padrão em tempo real Definition of the fetch() method.
Service Workers
The definition of 'caches' in that specification.
Rascunho atual Definition of the caches property.
Indexed Database API 2.0
The definition of 'indexedDB' in that specification.
Recomendação Definition of the indexedDB property.
Secure Contexts
The definition of 'isSecureContext' in that specification.
Candidata a Recomendação Definition of the isSecureContext property.

Browser compatibility

Estamos convertendo nossos dados de compatibilidade para o formato JSON. Esta tabela de compatibilidade ainda usa o formato antigo, pois ainda não convertemos os dados que ela contém. Descubra como você pode ajudar!

Feature Firefox (Gecko) Chrome Edge Internet Explorer Opera Safari
Basic support 52 (52) 54 ? ? ? ?
origin 54 (54) 59 ? ? ? ?
Feature Android Webview Edge Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? ? 52.0 (52) ? ? ? ? 54
origin ? ? 54.0 (54) ? ? ? ? 59


See also